Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10520859 | Image forming apparatus controlling surface potential of image bearing member | Katsuichi Abe, Naoki Fukushima | 2019-12-31 |
| 10228635 | Developer container, developing apparatus, process cartridge, apparatus main body, and image forming apparatus | Masahito Kato, Kenta Shibukawa, Katsuichi Abe, Naoya Asanuma, Atsushi Toda +2 more | 2019-03-12 |
| 9857730 | Developer container, developing apparatus, process cartridge, apparatus main body, and image forming apparatus | Masahito Kato, Kenta Shibukawa, Katsuichi Abe, Naoya Asanuma, Atsushi Toda +2 more | 2018-01-02 |
| 9857724 | Image forming apparatus | Katsuichi Abe, Taku Watanabe | 2018-01-02 |
| 7743986 | Recording medium management system and recording medium liquidation apparatus | Junji MASHIMO, Shinji Matsubara, Akihiro Takitani | 2010-06-29 |
| 7639956 | Image forming apparatus, cartridge, and storing device mounted to the cartridge | Norihito Naito, Yasunao Otomo, Hideaki Hasegawa, Nobuo Oshima | 2009-12-29 |
| 7274884 | Image forming apparatus to which a cartridge having a memory medium configured to store information-forming-condition information is attachable, such a cartridge, such a memory medium, and an image forming system comprising such a memory medium | — | 2007-09-25 |
| 7003249 | Developing apparatus including agitating member | Hideaki Hasegawa, Yoshihiro Ogawa, Norihito Naito, Yasunao Otomo, Nobuo Oshima | 2006-02-21 |
| 6963714 | Developing blade and device and process cartridge | Yasunao Otomo, Norihito Naito, Hideaki Hasegawa, Nobuo Oshima | 2005-11-08 |
| 6944410 | Image forming apparatus and method of sensing amount of remaining developer in image forming apparatus | Norihito Naito, Yasunao Otomo, Hideaki Hasegawa, Nobuo Oshima | 2005-09-13 |
| 6850714 | Image forming apparatus, cartridge, image forming system and storage medium | Kazushige Sakurai, Tomomi Kakeshita | 2005-02-01 |
| 6674975 | Electrophotographic image forming apparatus and process cartridge | — | 2004-01-06 |
| 6549223 | Electrophotographic apparatus, process cartridge, and electrophotographic photosensitive member | — | 2003-04-15 |
| 6529221 | Electrophotographic apparatus | — | 2003-03-04 |
| 6459861 | Image forming apparatus, and a cartridge having a developer container detachably mountable on such apparatus | Kazushige Sakurai, Hiroshi Sato | 2002-10-01 |
| 6229970 | Image forming apparatus with an amount of use control feature and cartridge removably mounted on the apparatus | Tadashi Onimura, Koichi Suwa | 2001-05-08 |
| 5923917 | Image forming apparatus, and a cartridge having a developer container detachably mountable on such apparatus | Kazushige Sakurai, Hiroshi Sato | 1999-07-13 |
| 5802419 | Image forming apparatus and process cartridge for image forming apparatus | Kazushige Sakurai, Hiroshi Sato | 1998-09-01 |
| 5715499 | Contact charger having an oscillating voltage for charging a photosensitive member | Michihito Yamazaki, Hiroki Kisu, Erika Asano, Eiji Funabashi, Hiroaki Ogata | 1998-02-03 |
| 4989224 | Coincidence circuit | Mitsumasa Narahara, Yuji Yatsuda, Shinichi Yasunaga, Fujio Moriguchi, Nobuhisa Kato | 1991-01-29 |